baber/WOPTO huggingface dataset:
Patent GB-1117879-A (GB)
Title: The prevention of thermal oscillations in cryogenic fluids
Inventor: PERRY JAMES L
IPC: F17C13/00
Filed: 1966-10-21
Abstract: 1,117,879. Storing liquefied gases. AIR REDUCTION CO. Inc. 21 Oct., 1966 [24 Oct., 1965], No. 47283/66. Heading F4P. Prevention of heat leak due to thermally induced pressure oscillations between the open cold end and the closed warm end of the liquid discharge tube assembly 21, and of the vapour vent assembly 31 of a heat insulated liquefied gas, e.g. helium, storage container is effected by including at spaced intervals along the conduits forming each assembly portions of increased cross-sectional area. As shown the lower cold end of assembly 21 comprises a tube 22 sealed to a jacket 8 connected at its upper end to the vacuum space between an inner tank 10 and a surrounding copper radiation shield 11 which in turn is surrounded by heat insulation material within an outer tank 12. Tube 22 opens into two enlarged portions 23, 24 of decreasing length and the upper end of the liquid discharge tube passes through the inner and outer tanks and is closed by a vacuum jacketed valve 29. The cold end of assembly 31 comprises a tube 32 open to the vapour space of tank 10 and passes through the roof thereof and then opens into spaced enlargements 33, 34, 35 located within the vacuum space between tank 10 and shield 11. The warm end of the assembly comprises a tube 36 coiled round a filler tube 14 and closed by a valve 17. A vent tube 19 branching from the filler tube 14, is first coiled round the inner tank 10 and then round tube 14 and is closed by a bellows-sealed valve 16. The upper ends of tube 14 and the surrounding coils pass through the cover of an evacuated extension 13 of tank 12 which is also surrounded by a detachable cover 30.
Patent GB-1452644-A (GB)
Title: Production of n-phosphonomethyl glycine triesters
IPC: C25B3/23
Filed: 1974-11-06
Abstract: 1452644 Electrolytic preparation of N-phosphonomethylglycine esters MONSANTO CO 6 Nov 1974 [7 Nov 1973] 47915/74 Heading C2P [Also in Division C7] A triester of N-(phosphonomethyl)glycine is produced by subjecting a solution of a tetraester of N-(phosphonomethyl)iminodiacetic acid in an organic solvent containing an electrolyte to electric current, said solvent being one in which both the tetraester and the supporting electrolyte are soluble. Preferably, the electric current is a direct current the supporting electrolyte is a metal, ammonium or alkylammonium perchlorate, fluoroborate, acetate, ethylsulphate, toluenesulphonate or, especially, hexafluorophosphate. The solvent may be a nitro compound, a halogenated hydrocarbon, an ether or, especially, a nitrile and the electrodes used to produce the electric current may be made of lead, carbon, lead sulphate, a noble metal or a metal oxide. The products may be hydrolysed to give N-(phosphonomethyl)glycine, a herbicide.
Patent GB-1415491-A (GB)
Title: Printing apparatus
IPC: B41F31/08
Filed: 1971-10-14
Abstract: 1415491 Reciprocating pumps COLORFLO Ltd 16 Oct 1972 [14 Oct 1971] 47955/71 Heading F1A [Also in Divisions B6 and F2]  A pump for the printing fluid of an intaglio printing apparatus [Division B6] consists of a main piston 20 and an auxiliary piston 36 which slides in a bore within it. When the platen 11  moves downwards the increase in pressure in printing fluid beneath the piston 20 raises the ball 47 thus closing the inlet 46 from the fluid reservoir. Further pressure increase, due to continued downward movement of the piston 20, raises the piston 36 thus allowing the pressurized fluid to pass to the outlet 32 in the lower platen 10. Belleville washers 62 ensure that the correct printing pressure is established beneath the lower platen before the piston 20 moves downwards relative to the housing.
Patent GB-1210779-A (GB)
Title: Method of manufacturing a pipe
Inventor: LEUCHS OTTMAR
IPC: B29C48/09
Filed: 1969-09-30
Abstract: 1,210,779. Extruding composite tubing. KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 30 Sept., 1969 [1 Oct., 1968], No. 48056/69. Heading B5A. [Also in Division F2] A metal strip is longitudinally disposed about an extruded thermoplastics tube and formed into a slit tube, the slit is then closed by folding or by welding, and the closed slit tube is then enclosed in a sheath of thermoplastics material. In a preferred embodiment, a polyethylene or polyvinyl chloride tube 2 is produced by extruder 1. A plastics tape 3 which becomes adhesive when heated is wrapped around the tube, either longitudinally (as shown) or helically, followed by a metal strip 4, e.g. of copper, aluminium, steel or a metal/plastic laminate, which is wrapped longitudinally. The slit in the metal tube is closed by lap or butt welding under an inert gas atmosphere in welding device 5. A second layer of plastics tape 6 which becomes adhesive when heated is applied, and then a thermoplastics sheath (9, Fig. 2, not shown) is extruded on by extruder 7, the heat of the process causing 2 and 4 to be bonded via tape 3, and 4 and (9) to be bonded via tape 6. Corrugations or grooves may be applied to the metal tube 4 before applying tape 6, or to outer sheath (9).
Patent GB-993486-A (GB)
Title: Improvements in or relating to electric vibrators such as vibro-massage apparatus orthe like
IPC: A61H23/02
Filed: 1963-12-05
Abstract: 993,486. Massage appliances. CALOR APPAREILS ELECTRO - DOMESTIQUES. Dec. 5, 1963 [Dec. 10, 1962], No. 48085/63. Heading A5R. In a massage appliance in which an applicator is vibrated by an electromagnet energized by alternating current, a rectifier is connected in the supply circuit so as to obtain a 50 c.p.s. vibration from the mains supply. The applicator 8 is mounted on an arm 6<SP>11</SP> of a U-shaped armature 6, which is associated with an electromagnet 4. The coil of this magnet is preferably divided into two sections so that these can be connected in series for 230 volt supply and in parallel for 110 volt supply. The device 12, for effecting this changeover, and a main switch 11 are accommodated in an upper part 2 of the casing.
Patent GB-1277957-A (GB)
Title: Work machine, for example a dredge or lifting appliance
IPC: E02F3/30
Filed: 1969-10-01
Abstract: 1277957 Earth working machines G FUCHS and U THIERER 1 Oct 1969 [1 Oct 1968] 48275/69 Heading E1F A machine such as a digger comprises a beam 5 pivotally supported on a frame 1 by crossed members 7, 9 and operated by a ram 4. A ram operated lever 12 on the beam carries a digging-tool such as a grab 14. The member 9 may be a rod as shown or may be a ram, Fig. 2 (not shown). The machine may be such that the digging tool is moved in the horizontal direction instead of the vertical direction as shown.
Patent GB-1129672-A (GB)
Title: Air diffuser
Inventor: SWEENEY GEORGE JOSEPH
IPC: F24F13/075
Filed: 1965-11-16
Abstract: 1,129,672. Ventilators. AIR DEVICES Inc. 16 Nov., 1965, No. 48724/65. Heading F4V. A rectangular diffuser has a frame formed of extruded aluminium sides A and mounting parallel pivotal extruded blades C of the crosssection shown. The short transverse flats on the blades promote turbulence in the air flow. The shaft parts 51 of the blades pass through holes 36 in the frame, Fig. 4, (not shown), and have peened ends frictionally engaging the outside of the frame. The inside of the frame is frictionally engaged by downstream portions of the blade ends. The blades are individually adjustable.
Patent GB-1438588-A (GB)
Title: Mud clip for a horseshoe
IPC: A01L7/04
Filed: 1973-10-22
Abstract: 1438588 Horseshoe mud clip R A SIRLES 22 Oct 1973 49142/73 Heading AIM A horseshoe clip 32 giving increased traction in muddy conditions comprises a base portion 34 having inner and outer edges 36, 38 respectively, which, when the clip is in position, embrace the inner edge of the shoe and the side of the horses hoof respectively. The base portion 34 has a V-shaped part which extends into a recessed fullering 24 of the shoe, and a lug 50 protruding downwardly and positioned rearwardly of a nail opening 46. When in position on the shoe 10, the outer edge portion 38 is bent over to be adjacent the outside wall of the hoof.
Patent GB-1488155-A (GB)
Title: Acoustic surface wave oscillator force-sensing devices
IPC: G01L1/16
Filed: 1974-11-14
Abstract: 1488155 Force-sensing HEWLETT-PACKARD CO 14 Nov 1974 [8 Jan 1974] 49324/74 Heading G1G [Also in Divisions H3 H4 and H5] A force-sensing device comprises two spaced transducers on a Piezo-electric substrate elastically deformable by the force to be sensed, the transducers being connected to an amplifier to form a surface acoustic wave (SAW) oscillator the frequency of which varies with the force. In the Fig. 7a embodiment a SAW oscillator comprises transducers 77, 78 of inter-digitated electrode form on substrate 71 and connected to amplifier 70. Fluidpressure acting on a diaphragm 75 moves an arched member 76 and hence flexes the substrate. The resulting oscillator frequency change is a measure of the pressure and occurs as a result of a change in the SAW propagation time between the transducers. The Fig. 8 embodiment has four SAW oscillators formed by respective pairs of transducers on the major faces of a rectangular-section bar 84 cantilevered from its upper end. The lower end of the bar supports an inertial mass 82. By appropriate electronic resolution of the frequency changes of the oscillators the amount and direction of rotation of the bar about axes 81 can be determined. Alternative embodiments for measuring force are described in which the substrate is of strip form with a transducer pair on one or each major surface Figs. 1, 3a and 4 (none shown), or the substrate is a diaphragm or hollow cylinder for measuring fluid-pressure Figs. 6 and 9 (not shown). Acoustic absorbers may be used at the ends of the SAW path (Fig. 6), where two transducer pairs are used as respective SAW oscillators on opposite major surfaces of a strip-form substrate the frequency difference between the SAW oscillator outputs provides a temperature-independent measure of the substrate deformation under an applied force. Interaction between the two SAW oscillators is reduced by staggering their transducers along the strip, by electrical screening, and by staggering the mid-band frequencies of the frequency-response characteristics of the respective transducers.
Patent GB-1358940-A (GB)
Title: Horizontal coke oven batteries
IPC: C10B21/12
Filed: 1972-10-26
Abstract: 1358940 Coke ovens HEINRICH KOPPERS GmbH 26 Oct 1972 [4 Nov 1971] 49497/72 Heading F4B In a horizontal coke oven battery of the kind having horizontally tapered oven chambers separated by heating walls with vertical flues for combustion of fuel gas and air, the region of a heating wall near the pusher machine has larger flues fitted with parallel flow burners, Fig. 1, and the region of the wall nearer to the discharge side has smaller flues fitted with mixed jet burners Fig. 2. The oven chambers are tapered to facilitate discharge of the coke, the heat required being greater where the oven chamber is wider i.e. at the discharge side. In the burner of Fig. 2 the air and gas passing along ducts 2 and 3 mix at 6 and short, hot flames are produced. At the pusher side the burners are designed to keep the air and gas separate until they have entered the flue by extending the dividing wall 4 between ducts 2 and 3. The long flame given by this burner produces less heat than the burner of Fig. 2. The height of the dividing wall 4 may be reduced gradually, flue by flue from the pusher to the discharge side.
Patent GB-1495153-A (GB)
Title: Prostanoic acid derivatives
IPC: C07C405/00
Filed: 1974-11-20
Abstract: 1495153 Prostaglandins IMPERIAL CHEMICAL INDUSTRIES Ltd 17 Oct 1975 [20 Nov 1974] 50249/74 Headings C2C and C2P [Also in Division A5] The invention comprises prostaglandins of the Formula I wherein either R<SP>1</SP> is carboxy, hydroxymethyl or (C 1-10  alkoxy)carbonyl, R<SP>2</SP> is OH or C 1-4  alkanoyloxy and R<SP>3</SP> is H, or R<SP>1</SP> is carboxy or (C 1-10  alkoxy)carbonyl and R<SP>2</SP> and R<SP>3</SP> together form an oxo group; A<SP>1</SP> is ethylene or cis- or transvinylene, R<SP>2</SP> is ethylene or trans-vinylene; R<SP>4</SP>, R<SP>7</SP> and R<SP>8</SP> are H or C 1-4  alkyl, R<SP>5</SP> is H, F or C 1-4  alkyl and R<SP>6</SP> is phenyl, naphthyl or tetrahydronaphthyl, optionally substituted by one or more halogen atoms, OH, NO 2 , phenyl, C 1-4  alkyl, C 2-4  alkenyl, C 1-4  haloalkyl, C 1-4  alkoxy, C 2-4  alkenyloxy, C 1-4  acylamino or di-(C 1-4  alkyl) amino radicals and for those compounds wherein R<SP>1</SP> is carboxy the pharmaceutically and veterinarily acceptable salts thereof and their preparation by standard methods. The following intermediates are also prepared: methyl - (3 - chlorophenoxy) - difluoroacetate; methyl - (3 - tolyloxy)difluoroacetate; 4#-[4- (3 - chlorophenoxy) - 4,4 - difluoro - 3 - oxo (and hydroxy) - but - 1 - trans - enyl] - 3,3a#,4,5,6,6c#- hexahydro - 5α - (4 - phenylbenzoyloxy) - 2H- cyclopenta[b]furan-2-one; 4#-[4-(3-chlorophenoxy) - 4,4 - difluoro - 3 - hydroxybut - 1 - transenyl] - 3,3a#,4,5,6,6a# - hexahydro - 5α - hydroxy - 2H - cyclopenta[b]furan - 2- one and its (bis(tetrahydropyranyl) ether; 4#-[4-(3- chlorophenoxy) - 4,4 - difluoro - 3 - (2 - tetrahydropyranyloxy) - 1 - trans - butenyl] - 3,3a#- 4,5,6,6a# - hexahydro - 5α - (2 - tetrahydropyranyloxy) - 2H - cyclopenta[b]furan - 2 - ol; 16 - (3 - chlorophenoxy) - 16,16 - difluoro - 9α- hydroxy (or 9-oxo)-11α,15-bis(2-tetrahydropyranyloxy) - 17,18,19,20 - tetranor - 5 - cis,13- trans-prostadienoic acid; and methyl-16,16- difluoro - 15 - hydroxy (or oxo) - 9α,11α - di(4- phenylbenzoyloxy) - 16 - (3 - tolyloxy) - 17,18- 19,20 - tetranor - 5 - cis,13 - trans - prostadienoate. Dimethyl 3-(3-chlorophenoxy)-3,3-difluoro-2- oxo-propylphosphonate and dimethyl 3,3-difluoro- 2 - oxo - 3 - (3 - tolyloxy)propylphosphonate are prepared by reacting dimethyl methyl phosphonate with methyl (3-chlorophenoxy) difluoroacetate and methyl (3-tolyloxy)diflurooacetate respectively in the presence of butyllithium.
Patent GB-1516050-A (GB)
Title: Voltage supply circuit arrangements
IPC: H02M3/337
Filed: 1976-12-02
Abstract: 1516050 Automatic voltage control NIXDORF COMPUTER AG 2 Dec 1976 [5 Dec 1975] 50312/76 Heading G3R [Also in Division H2] A regulated A.C. voltage supply circuit, Fig. 1, in which the D.C. input to an inverting push-pull switched transformer 43 is controlled by a transistor 2 in response to the voltage at an output winding 42, is modified, Fig. 2, by connecting a capacitor 51 and inductor 52 in parallel with the transformer circuit 4 to limit voltages occurring in the transformer so as to protect the transistors 44, 45. Excessive voltages produce current flow in diodes 48, 49, providing feedback from an additional transformer winding 50 to the centre feed point 53 of the transformer primary 41. In another embodiment, Fig. 3 (not shown), the diodes 48, 49 are connected directly to symmetrical points of the winding 41, and the positions of the capacitor 51 and inductor 52 are interchanged.
Patent GB-995988-A (GB)
Title: Machines for connecting conductive strips or wires to semiconductors by thermo-compression
IPC: B25J7/00
Filed: 1963-12-20
Abstract: 995,988. Bearings. SIEMENS & HALSKE A.G. Dec. 20, 1963 [Jan. 2, 1963], No. 50319/63. Heading F2A. [Also in Division H1] A bearing for a punch in a thermo-compression bonding machine (see Division H1) comprises three equally spaced screws 33, 34, 35 each provided at its tip with a rotatable ball 28, 29, 32. Two such bearings are provided to allow rectilinear motion of punch shaft 18, the screws being independently adjusted to ensure exact alignment of the shaft.
Patent GB-1056918-A (GB)
Title: Monocular mirror reflex camera
Inventor: WELZEL HERBERT
IPC: G03B9/07
Filed: 1964-12-11
Abstract: 1,056,918. Reflex cameras. PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. Dec. 11, 1964, No. 50592/64. Heading G2A. The shutter release 1 of a reflex camera is arranged to operate in two phases, one to enable the camera to be set and secondly to release the shutter. After rotation, the release can be pressed to a first position, determined by a pin 11 on the release engaging in an aperture 12, where a ring 18 closes contacts 2 and 20 energizing a circuit including a photo-electric cell 23 whereby' the diaphragm aperture can be set by moving a setting ring 27. Also, in moving the release to this position a system of levers 3, 26, 6 and 7 are operated to move plunger 8 to set the diaphragm in accordance with the position of the setting ring 27. The release is held in this first position by a pawl 10 to enable the setting operations to be undertaken. To operate the shutter the release 1 is turned so that the pin 11 can enter the slot 12a whereby the arm 26b of lever 26 is moved to operate a further lever 14, the arm 14a is thus moved to release a disc 15 which operates the shutter. In an embodiment the pin 11 engages a transverse groove in the first position.
Patent GB-1487299-A (GB)
Title: Hose
IPC: F16L11/08
Filed: 1975-12-10
Abstract: 1487299 Hoses GATES RUBBER CO 10 Dec 1975 [11 Dec 1974] 50607/75 Heading F2P A hose comprises a first tube 12, reinforcement plies 14, 16 consisting of oppositely helically wound tubing 22 and a cover 18. A friction layer 20 preferably of a foamed flexible material is positioned between the layers of tubing and can be positioned between tube 12 and the inner layer of tubes. Tube 12 may be reinforced and the tubing 22 has a radial collapse resistance modulus that is greater than the first tube. During manufacture tubing 22 is pressurized for the winding operation. The tubes 22 may be heat sealed or their ends kinked to provide sealing and provide float chambers. With regard to the radial thickness of the hose wall, at least half thereof is taken up by the tubing 22. Fig. 4 shows a hose attached to a connecting means 34. It has additional tubing 22 to provide greater buoyancy about the ends to counteract the effect of the coupling means. The tube 12 is of natural or synthetic rubbers, e.g. neoprene, or of a plasticized polyester, "Nylon" (Registered Trade Mark), polyvinylchloride, or polyurethane. Tubing 22 is of a blocked thermoplastic polyester elastomer, "Nylon" (Registered Trade Mark), or polyurethane.
Patent GB-1486025-A (GB)
Title: Scanning apparatus for use in facsimile transmission and copying machines
IPC: H04N1/00
Filed: 1974-11-26
Abstract: 1486025 Facsimile systems XEROX CORP 26 Nov 1974 [12 Dec 1973] 51147/74 Heading H4F [Also in Division B6] The system includes a scanner comprising a conveyer which carries means for directing light from successive elementary areas of a document on to a photo-cell to provide a facsimile signal for transmission and for scanning light from a pulsed light source across a photosensitive recording surface to record symbols on the surface. The figure shows a conventional xerographic printer in which a moving document 52 may be copied by directing an image of a part of it on to a xerographic drum 2 via mirrors 65, 66 and lens 67, and with which the scanner is associated to provide fascimile operation. The belt 51 carries a number of light-directing means, each including a lens 46 and mirror 48. In the transmission mode, as the belt rotates, light from successive regions of the document is directed via a lens-mirror assembly on the upper run and lens 61 to photo-sensor 70 which provides signals for transmission to a remote receiver. In the receiving mode, a light source 31 is flashed at the instant that that symbol on disc 26 which corresponds to the received symbol signal is aligned with lenses 32, 38 so that the image of the symbol is directed via a lens-mirror assembly on the lower run on to the xerographic drum.
Patent GB-1197538-A (GB)
Title: Process for the manufacture of Crimped Spun Yarn
Inventor: NAKANO HIROSHI
IPC: D02G1/12
Filed: 1968-10-30
Abstract: 1,197,538. Crimping yarn, tension device. ASAHI KASEI KOGYO K.K. 30 Oct., 1968, No. 51528/68. Headings D1F and D1D. A crimped yarn is made by drafting a tow of synthetic fibrous material, discharging the material into a heated stuffing and crimping zone to form primary and secondary crimps, passing the heat-set material through a reserve zone to cool it, re-drafting the material in an amount of up to 200% and finally twisting the re-drafted material to produce a yarn. As shown, a bundle of multifilaments or fibres is passed from package 11 (or direct from a spinning machine) to feed rollers 13, 14 and 15 then to a stretch-break zone containing guide 60 and break roller 16. The filament bundle then passed to a first drafting zone in apron band 21, 22 and an after-drafting zone between rollers 26, 27 and 28, 29. The drafted and cut filament bundle is then fed to the heated stuffer box 31 to form the primary and secondary crimps. The crimped fibres are cooled in chute 37 and then passed through decrimper 39. The decrimper comprises a set of parallel bars 48 through which the yarn passes in a zig-zag manner. The yarn is tensioned by a pivotally mounted guide (42) which deflects the yarn from its path of travel if the yarn becomes slack when a yarn tangle is detangled at a guide (41), see Figs. 4 and 5 not shown. The yarn is then after-drafted by rollers 47, 48 and wound on ring-spinner 52. In a modified arrangement the filament bundle is fed directly from the package to drafting aprons.
Patent GB-1144914-A (GB)
Title: Improvements in and relating to monoazo dyes
Inventor: BEANLANDS REGINALD DARNBOROUGH
IPC: C09B29/033
Filed: 1966-11-19
Abstract: 1,144,914. Monoazodyes. YORKSHIRE DYEWARE & CHEMICAL CO. Ltd. 23 Oct., 1967 [19 Nov., 1966], No. 51891/66. Heading C4P. The invention comprises water-insoluble monoazodyes of general formula wherein R<SP>1</SP> is hydrogen or C 1 -C 4  alkyl ; R<SP>2</SP> is hydrogen, hydroxyl, cyano or acetoxy; R<SP>3</SP> is hydroxyl, cyano, acetoxy or alkoxy; and " alkylene " is methylene or ethylene. They are prepared by diazotization and coupling. The dyes dye or print cellulose acetates and polyester fibres in red shades.  Reference has been directed by the Comptroller to Specification 859,899.
Patent GB-1090880-A (GB)
Title: Improvements in or relating to precast concrete structural components
IPC: C04B40/00
Filed: 1964-12-22
Abstract: 1,090,880. Moulding concrete. STRUCTURAL CONCRETE COMPONENTS Ltd., and C. L. SAINTY. Dec. 2, 1965 [Dec. 22, 1964], No. 51985/64. Heading B5A. [Also in Division E1] In a method of moulding concrete structural components, the mix including a spherical aggregate of substantially uniform size and a cement matrix is vibrated in the mould to distribute the matrix by gravity so that the concrete at the bottom of the mould is dense and without voids while the concrete at the top of the mould is porous. Reinforcing members and/or fibrous material may be located in the porous part of the component.
Patent GB-1157792-A (GB)
Title: Nuclear Reactor Fuel Element Assemblies
Inventor: RIDGWAY JAMES
IPC: G21C3/344
Filed: 1965-12-08
Abstract: 1,157,792. Welding by pressure; brazing. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 6 Dec., 1966 [8 Dec., 1965], No. 52036/65. Addition to 1,114,706. Heading B3R. [Also in Division G6] A nuclear fuel element is spaced from the supporting grids by metal pads fixed to the fuel sheath. The zirconium alloy pad, Fig. 1, is attached to the zirconium alloy sheath 1, by resistance welding projections 5. A brazing connection is also made by a brazing foil in the slot 3. In an alternative form, Fig. 2, the brazing foil is attached to side 6. An argon atmosphere is employed for welding and brazing is effected by high-frequency induction in vacuo.